Bug making machine



Oct. 18, 1932. c. A. DAHLEN RUG MAKING MACHINE Filed Dec. 4, 1929 4 Sheets-Sheet l 1932- c. A. DAHLEN RUG MAKING MACHINE Filed Dec, 4, 1929 4 Sheets-Sheet 2 mi 7 :5 I

Oct. 18, 1932. c. A. DAHLEN RUG MAKING MACHINE Filed Dec. .4, 1929 4 Sheets-Sheet 5 Illlllllllllllllllll i 0. A. DAHLEN RUG MAKING MACHINE Oct. 18, 1932.

Filed Dec. 4, 1929 4 Sheets-Sheet 4 xM m'.

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Patented 1a, 1932 UNITED STATES PATENT OFFICE.

Applicationfiled Ileoember 4, 1929. Serial No.4115628.

This invention relates to rug making machines, the principal object being to prov1de a more-practical and economical machine for making rugs of practically'unlimited length.

Another object is to provide such a machine especially adapted for the making rugs having difierent lengths of nap or pile.

Other advantages of the cooperation of the novel arrangement of parts of the device Wlll appear in the following description thereof.

Referring now to the accompanying drawings, forming part of this application and wherein like reference characters indicate like parts: i

Figure 1 is a perspective v1ew,loohng at a machine embodying the invention from the head end thereof with a portion broken Figure 2 is a perspective view of the machine from the tail end thereof;

Figure 3 is an enlarged diagraatical cross-sectional view of the machine;

Figure 4: is an enlarged perspective view of the tail end of the machine as from the back side thereof;

Figure 5 is a front elevation of the tail end of the machine;

Figure 6 is a perspective cutter head.

The frame structure upon which the operating mechanism is mounted comprises the view of the loop upright head end 1 and tail end 2, resting upon any suitable foundation and united at their lower opposite corners as b suitable rods 3 and at the top thereof by the orizontal upright beam 4, central Tl-beam 5, and-talole beam 6, as well as other lon 'tudinal reinforcing rods or bolts as desire From the head end of the machine there extends a narrow platform surmounted by a still narrower platform or track like memher 8 which forms in combination a raclr-lilge support for the reci roc'ahle csrriage. This support is sustained in any desired manner at its outer end for example lay the legs or horse 9.

The reciprocahle carriage is of tubular construction and comprises the upper and vlower arms 10 and 11 respectively, united as generhy the upright member 12 forming a ally U-shaped carriage. The forward end of the upper member 10 terminates in the needle carrying head illustrated generally at 13 and the forward end of the ower member terminates in the cutter head illustrated generally at 14. H

The preferred form of power mechanism is illustrated as employing an electric motor indicated at 15, mounted upon the head end 1 of the device, and which drives the countershaft 16 mounted thereabove, the latter in turn operating the needle, head 13 as by the cable 17 passing through and about the triple sheaves 18, 19 and 20, and thenceto and about the fixed sheave 21 on the beam 4 of the machine, thence back to and about the drivin sheave 22 on the countershaft, thus provi ing power at all times to the needle head, ir-

respective of its position on the machine.

By suitable-mechanism within the needle head 13, the small shaft 23 is given constant rotary motion which is imparted longitudi- I nally of the carriage back to the oppos1te end thereof where it is connected by suitably encased beveled gears as at 24 to the inclined shaft 25, thence b similar beveled gears to the horizontal sha t 26 for operating the loop cutting mechanism, as clearly shown in Fi ure 6 of the drawings. It is obvious that t e loop cutting mechanism must remain at all times in fixed relation to the needle operating mechanism 'thereabove. The specific form of these two devices does not enter into my present invention.

To provide as nearly as possible non-frictional supports for'the carriage, the upper arm 10 thereof is supported upon a series of rollers 27 which bear upon the beam 4 when over the machine end upon the memher 8 of the extension rack when outwardly from the machine; The lower member 11 of the carriage is carried upon suitahle laterally ex= tended rollers 28 bearing upon the speded elevated rods 29 above the member 7 of the support,

in the: mechanism comprisin the needle head there is included an intermittently driv= en gear wheel 30 which meshes at all times with the rack'31 which extends the full length of the beam; it being understood that the 1 uppermost central portion of the'beam 4 is dovetailed as shown in Figure 2 for slidably holding the body portion of the needle head which 15 mounted thereupon and in the center of which upwardly extending dovetailed portion is formed the rack 31. i

There is also carried in the needle head suitable mechanism for optionally operating the head manually either backwardly or forwardly, as well as means for stopping and starting the motion of the carriage without interfering with the continuous operation of the endless cable 17. The manual controlling device includes the counterbalanced crank arm 32, mounted upon the shaft 33 conveniently accessible to the/operator of the device,

By this arrangement when the needle carriage is thrown into action and operated by the power mechanism just described such operatlon is intermittent in step with the reciprocation of the needle and obviously may be controlled when desired by hand.

Detailed descri tion of the loop cutting mechanism carrie upon the inner terminous of the lower member 11 of the carriage is not deemed essential, it being set forth in my copending application Serial Number 388,598, filed August 19th, 1929 and it will be obvious that any other form of loop cutting device mtg-be employed if desired.

epending from the beam 4 is supported by the clips or brackets 34 the inclined rug engaging plate-35 the lower edge of which is s aced slightly above the adjacent edge of the table 6 which is of fabncated structure including the slightly reduced and sharpened plate 36. This spaced relation between the sharpened edges of the plates 35 and 36 provides the channel through which the needle 37' reciprocates in the operation of the machine. The edges of these two plates are spaced vertically as well as horizontally, rovlding room for the back of the rug as 1t is fed throughsame during the process of makmg. Attention is now directed to Figure 3 of thedrawings for a description of the feeding of the back of the rug through the machine, and while I have shown the preferred arrangement of rollers and operating device for such a machine, it is evident that modifications in such arrangement may be resorted to without departing from the spirit of the inyention. Back of the machine is mounted in any desired manner the roller carrying shaft 37, the wooden roller commonly used for such purpose being shown at 38, and upon which is illustrated a full roll 39 of backing material or canvas as is usually employed, and

all of the rollers subsequently described are similarly mounted intermediate of the ends of the machine. The backing is then led from the supply roller 39 upwardly and over a small idler 40, downwardly and forwardly about a similar idler 41, partially around same and backwardly around the major prick point feeding roller 42 mounted upon a suitable shaft 43, thence upwardly and forwardly about a somewhat larger idler 44. From the roller 44 the rug back is'led onto and over the table 6, across the needle gap or channel and under the plate 35 to and .over the roller 45 which is similar in size to the roller 44, thence downwardly and about the second large prick point feeding roller 46 mounted upon the shaft 47 and about the small dler 48 above the prick point roller 46 to and about the final rug receiving roller 49 which may be positioned any place'desired back of the machine; it being understood of course that after the back has left the needle channel it has become tufted and is a rug.

It will be noted that I have provided two power rollers mounted u on the shafts 43 and 47, and which two sha ts extend outwardly of the tail end member 2 and by which shafts, the advancing of the rug back is accomplished in' the following manner.

Upon the end of each shaft 43 and 47 is mounted a worm wheel, the one on the shaft 43 being indicated at 50 and the one on the shaft 47 at 51, while transverse to the end 2 of the machine is mounted a shaft 52 carrying a worm 53 meshing with the worm wheel 50, and a, like worm 54 meshing with the worm -wheel 51, and these worms engage their reon the outer end thereof mes ing with a spur gear not ap caring on the drawings on the counter-she t 56 which is operated by the crank 57.

As a novel feature in connection with the application of power to the shafts 43 and 47, it will be noted that the shaft 52 is made in two parts, one carrying the worm 54 and meshing w1th the worm wheel 51, and the other carrying the worm 53 meshing with the worm wheel 50, said shafts being telescopical'ly united in any desired manner but each carrying a disc'for cooperative engagement,

said pair of discs being illustrated at .58 and one of which carries a spring controlled keeper bolt 59 so that tension. of the rug back intermediate of the prick point feeding rollers may be altered, that is to say, the operator may, if slack exists between these rollers, hold withdrawn the spring bolt 59 while the shaft 52 is being turned which will operate one of the rollers slightly in advance of the other. Then when the spring bolt is released and engages a new hole in the discs, the slack will thus be taken up between the rollers.

' posite end of the shaft 52 to that upon which d 11 of the carriage is in operation by virtue of the gear 55 is mounted,'and which gear 60 meshes with a smaller gear 61 controlling any form of suitable counter or recording device so that record may be conveniently kept of the yardage.

The levers indicated at 62 and 63 are for the intermittent operation of the pile combing device which does not form part of my present invention.

The operation of'the device is as follows:

Assuming that the rug backing has been fed through the machine as previously described ready for the weaving or rug making process, the needle head 13 is positioned at the head end of the machine as illustrated in Figure 2 of the drawings, when the yarn to be used is brought from any desired source and attached to the tension arm illustrated at 64c,

and from thence threaded as desired individually in the needle 31 Assuming also that the power belt 17 is supplying power to the needle head through the influence of the motor 15 being in action, the needle head is thrown into gear and commences immediate operation in tufting the rug; the carriage comprising the elements 10, 11 and 12 being advanced intermittently in step with the vertically recipr'ocable motion of the needle. At any point desired, as indicated by the pattern on the backing, the action of the needle carriage may be stopped by manual manipulation of the clutchlever 65, and any adjusting motion of the needle for changing the thread therein may be accomplished manually by the wheel 68 on the needle carriage. Or in the event of the carriage being at the opposite end of the machine and the line of tuft-lug completed, the needle carriage is brought back to the head of the machine by manual operation of the crank 32. Usually however the rug back is advanced before .the needle carriage is returned to the head of the machine, and this is accomplished as previously described by manual manipulation of the lever 57 which rotates the shaft 52 and the prick point wheels 42 and all. Then when the needle is'again properly threaded it is ready "for another line of stitching transverse to the rug back. During the process of tufting thus described, it is obvious that the loop cutting mechanism illustrated at '14 and carried on the inner terminus of the member the rotation of the shaft 26 and in step with the reciprocations of the needle; the loo cutting mechanism, however, as previous y described, forming part of a separate invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is:

1. A described comprising an upright elongated structure, spaced feeding rollers mounted longitudinally therein, spaced tracks longitudmally of the upper portion of the structure, a carriage cooperating reciprocably 'with said tracks and carrying a needle head upon one track and a loop cutting head upon the other track.

2. A rug'making machine otthe character described comprising an upright elongated structure, spaced feeding rollers mounted longitudinally therein, spaced tracks longitudmally of the upper portion of the structure, a carriage cooperating reciprocably with said tracks and carrying a needle head upon one track and a loop cutting head upon the other track; said tracks extending beyond one end of the structure for the purpose described.

3. A rug making machine of the class described including rug feeding and guiding rollers, a table and rug guidin plate vertically and horizontally s aced or horizontal passage of the rug there etween, a longitudinally movable needle operating head for forming the loops in the rug, and means intermediate of said rollers for varying the tension of the rug held therehetween.

4. A rug making machine of the character described comprising an upright structure, feeding rollers mounted longitudinally there in, tracks longitudinally of the upper portion of the structure, a carriage cooperating reci procably with said tracks and carrying a needle head upon one track and a loop cutting head upon another track, and means intermediate of said rollers for varying the tension of the rug held therebetvveen.

5. A rug making machine of the character described comprising an upright structure, feeding rollersmounted longitudinally therein, tracks longitudinally otthe upper portion of the structure,'a carria e cooperating reciprocabl with said trac s and carrying a needle lead upon one traclr and a loop cutting head upon another track, and an adjustable rotative shaft for normally driving the rollers in opposite directions.

in testimony whereof I afix my signature.

UHARLES A. DAHLEN.

rug making machine of the character 

